Electrocardiography for Cheap: DIY ECG Uses One LM741 Op-Amp, Five Resistors, and 'Penny Electrodes' « Adafruit Industries – Makers, hackers, artists, designers and engineers!
Home Made Electrocardiograph
Electrocardiography for Cheap: DIY ECG Uses One LM741 Op-Amp, Five Resistors, and 'Penny Electrodes' « Adafruit Industries – Makers, hackers, artists, designers and engineers!
Make Your Own Electrocardiogram (ECG) : 6 Steps - Instructables
DIY ECG Machine On The Cheap
DIY ECG Machine On The Cheap
Teralab - Electrocardiogram (ECG)
Build Your Own ECG-EKG Unit | Nuts & Volts Magazine
A DIY EEG (ECG) Machine - Stefan's Blog
Ad8232 Heart Rate ECG Monitoring Sensor Module With Cables Diy Kit For Arduino | eBay
How To Obtain an EKG Without Electrodes - Ditch Doc EM